.php-cs-fixer.php

<?php

return (new PhpCsFixer\Config())
    ->setRules([
        '@PSR12' => true,
        'binary_operator_spaces' => true,
        'blank_line_after_opening_tag' => true,
        'compact_nullable_typehint' => true,
        'declare_equal_normalize' => true,
        'lowercase_cast' => true,
        'lowercase_static_reference' => true,
        'new_with_braces' => true,
        'no_blank_lines_after_class_opening' => true,
        'no_leading_import_slash' => true,
        'no_whitespace_in_blank_line' => true,
        'ordered_class_elements' => [
            'order' => [
                'use_trait',
            ],
        ],
        'ordered_imports' => [
            'imports_order' => [
                'class',
                'function',
                'const',
            ],
            'sort_algorithm' => 'none',
        ],
        'return_type_declaration' => true,
        'short_scalar_cast' => true,
        'single_blank_line_before_namespace' => true,
        'single_trait_insert_per_statement' => true,
        'ternary_operator_spaces' => true,
        'unary_operator_spaces' => true,
        'visibility_required' => [
            'elements' => [
                'const',
                'method',
                'property',
            ],
        ],
    ])
    ->setFinder(
        PhpCsFixer\Finder::create()
            ->exclude('vendor')
            ->in([__DIR__.'/src/', __DIR__.'/tests/'])
    )
;